Question

exam lesson name: introduction to design technology
exam number: 700796rr
exam guidelines
exam instructions
question 1 of 20 :
select the best answer for the question.

1. what is a reactive molecule formed from three oxygen atoms covalently bonded together?

a. ozone
b. uv radiation
c. coal
d. chlorofluorocarbon
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Explanation:

To solve this, we analyze each option:

• Option A: Ozone has the chemical formula \( O_3 \), meaning it's three oxygen atoms covalently bonded and is reactive.
• Option B: UV radiation is a form of electromagnetic radiation, not a molecule of oxygen atoms.
• Option C: Coal is a fossil fuel, mainly composed of carbon and other elements, not oxygen atoms bonded as described.
• Option D: Chlorofluorocarbons (CFCs) contain chlorine, fluorine, and carbon, not just oxygen atoms.

So the correct answer is the one with three oxygen atoms covalently bonded, which is ozone.

Answer:

A. Ozone